FTIR在物质结构分析方面的研究进展

张莹; 杨曙明

doi:doi:10.3964/j.issn.1000-0593(2017)01-0054-04

光谱学与光谱分析, 2017, 37 (1): 54, 网络出版: 2017-02-09

FTIR在物质结构分析方面的研究进展

The Research Development of FTIR in Analyzing Material Structures

论文大纲

张莹杨曙明

作者单位

中国农业科学院农业质量标准与检测技术研究所, 北京 100081

傅里叶变换红外光谱结构分析污染物 Fourier transform infrared spectroscopy Structural analysis Contaminants

摘要

从三聚氰胺、 “瘦肉精”、苏丹红、塑化剂、地沟油到如今的“皮革奶”, 动物源性食品安全问题层出不穷, 动物养殖环节中非法添加物的使用、高风险物质的滥用问题日益突出, 如何实现对未知添加物的筛查与确证面临严峻考验。红外光谱, 与核磁共振谱、质谱、紫外光谱一样, 是进行结构分析的有力工具。目前, 在畜产品质量安全方面, 应用傅里叶红外光谱（FTIR）对这些添加物进行分析的研究很少。本文总结了当前FTIR物质结构分析方面的应用, 包括对已知化合物光谱特征、分子构象、稳定性、同系物、衍生物、反应产物等的分析, 对大分子物质官能团的推断, 对未知物分子结构式的确证和对复杂生物样品的组分分析或种类辨别, 以期形成对动物养殖环节中非法添加物或高风险物质筛查的新思路, 希望建立针对动物养殖环节中可能出现的有危害性的添加物的红外光谱库、官能团库, 在此基础上形成未知添加物的综合解析与确认技术规程, 对可能引起重大食品安全事故的添加物进行早期预警, 从而防患于未然。

Abstract

Safety issues of animal derived food have been emerging one after another, and the using of the illegal addictives and abuse of high-risk chemicals bred for livestock have been increasingly serious from melamine, lean meat powder, Sudan Red, plasticizing agent, waste oils to leather milk．How to determine these chemicals faces severe challenges. Infrared spectroscopy is the same powerful for material structures as nuclear magnetic resonance spectroscopy, mass spectrometry and ultraviolet spectrum. There are few researches about quality and safety of livestocks products．In this article, some researches in analyzing structures has been reviewed, including studies of spectral features, molecular conformation, stability, homologous series, derivative and reaction products, inferring functional groups of macromolecular compounds and molecular structural formula and distinguishing complex biological samples．Forming the new thought screening contaminants maybe used for animals is expected to early warning addictives causing serious food safety problems that is to build the comprehensive analysis methods for these matters on the basis of creating spectrum or functional groups databases designed for animal products．

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张莹, 杨曙明. FTIR在物质结构分析方面的研究进展[J]. 光谱学与光谱分析, 2017, 37(1): 54. ZHANG Ying, YANG Shu-ming. The Research Development of FTIR in Analyzing Material Structures[J]. Spectroscopy and Spectral Analysis, 2017, 37(1): 54.

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